When I click the yellow edit with bricks link in templates or pages, I will get an internal server Error 500. This only happens when trying to edit with Bricks.
This is usually a memory issue. Could you go to your bricks menu and choose system information and look to see if WP memory limit is green and not red.
This was my favourit solution.
Plesk > Tools & Settings > Web Application Firewall > Settings > Configuration > Custom Directives: SecResponseBodyLimit 546870912 Works instantly.
Haven’t tryied this but would bet that it will work like the previous one. <IfModule mod_security2.c> SecResponseBodyLimit 546870912 </IfModule>
Tryied this at wp-config.php but it didn’t work. Anyway left it there to increase from the default 30. set_time_limit(300);